xenharmonic (microtonal wiki)

Omnitetrachordal MODMOS scale
7L+8s
15 tones (6+3+6)

Porcupine, 2 forms

P = 3.3809207248
Q = 8.6586615703 (4/3 = 3L+2.5s)

L = 80.00 to 171.43 cents (128.12 cents @ P, 151.44 cents @ Q)
s = 0.00 to 80.00 cents (37.89 cents @ P, 17.49 cents @ Q)

9/8 = L+2s (171.43 to 240.00 cents)
4/3 = 3L+3s (480.00 to 514.29 cents)
MOS generator = L+s (160.0 to 171.4 cents)

notable EDOs: 22, 29, 36, 37, 43, 65

LsLsLsLsLsLsLss (MOS, not OTC)
   ||    ||
LsLLssLsLLssLss (OTC MODMOS, form 1)

LsLsLsLsLsLsLss (MOS, not OTC)
  ||    ||
LssLLsLssLLsLss (OTC MODMOS, form 2)

LsLLssLsLLssLss (OTC MODMOS, form 1) - gen chains 9,2,2 / 2 orphans
  | |   | |
LssLLsLssLLsLss (OTC MODMOS, form 2) - gen chains 9,2,2 / 2 orphans

all modes, form 1:

`Lss LsLLss LsLLss`		`LssLsL LssLsL Lss`
`ssL sLLssL sLLssL`		`ssLsLL ssLsLL ssL`
`sLs LLssLs LLssLs`		`sLsLLs sLsLLs sLs`
		`LsLLss LsLLss Lss`
		`sLLssL sLLssL ssL`
		`LLssLs LLssLs sLs`
	`LssLsL Lss LssLsL`
	`ssLsLL ssL ssLsLL`
	`sLsLLs sLs sLsLLs`
	`LsLLss Lss LsLLss`
	`sLLssL ssL sLLssL`
	`LLssLs sLs LLssLs`
`Lss LssLsL LssLsL`
`ssL ssLsLL ssLsLL`
`sLs sLsLLs sLsLLs`

all modes, form 2:

`sLs sLLsLs sLLsLs`		`sLssLL sLssLL sLs`
`Lss LLsLss LLsLss`		`LssLLs LssLLs Lss`
`ssL LsLssL LsLssL`		`ssLLsL ssLLsL ssL`
		`sLLsLs sLLsLs sLs`
		`LLsLss LLsLss Lss`
		`LsLssL LsLssL ssL`
	`sLssLL sLs sLssLL`
	`LssLLs Lss LssLLs`
	`ssLLsL ssL ssLLsL`
	`sLLsLs sLs sLLsLs`
	`LLsLss Lss LLsLss`
	`LsLssL ssL LsLssL`
`sLs sLssLL sLssLL`
`Lss LssLLs LssLLs`
`ssL ssLLsL ssLLsL`

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Theory

OTC 7L 8s

See also